I wish I could give the book 3.5 stars, because it's somewhere in between good and great. This is *the* book that kicked off the curernt "missional church" movement and the wide range of resources that have come in that stream. If you're a student of the missional church, then it's worth reading if for no other reason than to understand where it all started. For those who simply want an introduction to the missional church, it would be helpful, but there are other books written more recently that may be better or more practical.
The authors are a combination of pastors and theologians, but the nature of the book (written by committee after decades of discussion) means that it is rather theoretical. This is not necessarily bad, but it means that much work remains in bringing it down to ground level. The authors come from a variety of Protestant traditions (albeit all low-church), which has the beneficial effect of smoothing out denominational quirks; however, they are almost exclusively trained and experienced in mainline circles, which ironically leaves them with a somewhat parochial perspective, seemingly ignorant of parallel developments in evangelical circles.
As presented in the book, the idea of the missional church is grounded in an understanding of God as being by nature apostolic (borrowed in large part from Newbigin). In other words, God is a sending God: the Father sends the Son, and the Son sends the Spirit. This combines with an already/not-yet view of God's kingdom to suggest that Jesus' mission, and thus the church's mission, is to proclaim and demonstrate the in-breaking of "God's reign." This "sent-ness" should, according to the authors, be the primary ordering paradigm for all aspects of church organization, leadership, community life and action.
As the subtitle implies, throughout the book the authors make a project of contextualizing the missional church to the post-modern North American culture (i.e., that of the US and Canada). It is their belief that the American church is faltering as it heads into the 21st century because of errors introduced both in the establishment of Christianity under Constantine ("Christendom") as well as in philosophical shifts introduced during the Enlightenment ("modernity"). The argument is that Christendom and modernity introduced critical weaknesses into the church that have begun to fracture under the stress of postmodernism. The solution, therefore, is to refocus on the initial mission of God and start fresh in applying it to contemporary life.
Quotes of interest to me:
"The historic transformations and current existence of the church in North America form a complex reality that we must deal with in considering the development of a missional ecclesiology. ... We do not believe, however, that the context itself defines the mission and message of God's people." (p. 76)
"Over time, these '[Reformation] marks [of the church]' narrowed the church's definition of itself toward a 'place where' idea." (p. 80)
"As Jurgen Moltmann has put it, 'The historical church must be called "apostolic" in a double sense; its gospel and its doctrine are founded on the testimony of the first apostles, … and it exists in the carrying out of the apostolic proclamation, the missionary charge. The expression "apostolic" therefore denotes both the church's formation and its commission.'" (p. 83)
"To proclaim the divine reign [verbally] is to add the signature of Jesus; to refrain from proclamation leaves all else anonymous, ambiguous, and subject to misreading the situation." (p. 107)
"Virtually every Christian public ethic justifying behavior that runs counter to the example and teaching of Jesus does it on the grounds of responsibility. … Jesus' example is deemed irrelevant or irresponsible." (p. 124-5)
"The more accurately the church locates the key points of difference between its surrounding culture and that culture called for by the reign of God, the more faithfully the church lives a distinctively holy life in its place." (p. 129)
"A false distinction arises between the spiritual world where the Spirit supposedly resides and the material world of ordinary, everyday life. ... In essence, the Spirit becomes a totally mysterious power used to explain incomprehensible statements of faith, gaps in human knowledge, or extraordinary spiritual experiences." (p. 143)